Door-operating mechanism.



A. R. 'BOXALL, D008 OPERATING MECHANISM.

APPLICATION FILED OCT. 18. I916.

1 ,238,740. PatentedSept. 4,1917

3 SHEETS-SHEET l.

ARTHUR" H. BOXA'LL' A TTORNEY.

A. R. BOXALL.

DOOR OPERATING MECHANISM.

APPLICATION FILED OCT. 18. ISIS.

1,238,740. Patented Sept. 4,1917.

3 SHEETS-JANET Z.

INVENTOR. ARTHUR R.. BOXALL A TTURNEY.

A. R. BOXALL.

DOOR OPERATING MECHANISM.

APPLICATION man OCT. 18. 1916.

1,238,740. PatentedSept. 4,1917.

3 SHEETS-SHEET 3.

ARTH UR R. BOX'ALL Y Ma! 'TORNEK INVENTOR.

ARTHUR R. BOXALL, OF ROME, NEW YORK.

DOOR-OPERATING MECHANISM.

Specification of Letters Patent.

Patented Sept. 4, 1917.

Application filed October 18, 1916. Serial No. 126,420.

To all whom it may concern:

Be it known that I, ARTHUR R. BOXALL, a citizen of Great Britain, residing at Rome, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Door- Operating Mechanism, of which the following is a specification, reference being had therein to the accom anying drawing.

y invention relates to door operating mechanism, and I declare the following to be a full, clear, concise and exact description thereof suificient to enable anyone skilled in the art to which it appertains to make and use the same reference being had to the accompanying drawings in which like reference. characters refer to like parts throughout the specification.

The object of the inventionis to provide a simple efficient device for opening and closing the doors of automobiles, carriages and other vehicles. Such a device will be found particularly valuable in connection with conveyances used for commercial purposes, such as taxicabs and jitney busses. Furthermore, by the employment, of this device the chauffeur is able to open or close the doors by actuatin pedals located near his seat.

The c ject will be understood by. referring I to the drawings in which: i. v. j I E Figure 1 is a perspective view of that part of the device which is disposed under the front seat of the automobile;

h Fig. 2 is a perspective detail crank lever employed; y

Fig. 3 is a plan view of the device, showing one door open and the other in closed position;

Fig. 4 is an enlarged detail view, showing a perspective of the mechanism within the door for operating the latch;

Fig. 5 is an enlarged detail viewshowing a perspective of certain arms employed for closing the doors;

Fig. 6 is a detail view in fragment, showing a shaft and immediate parts for actuating the latch of the door, parts being illust rated in section;

Fig. 7 is an enlarged perspective view of the hinges and immediate parts, employed;

Fig. 8 is an enlarged fragmentary view of the arms and shaft for closing the doors, certain parts being shown in section, and the view being taken from the rear, in order to view of a bell show the bevel sides of the heads of certain pllmgers employed;

Fig. 9 is a perspective miniature view of a frame employed;

Fig. 10 is an enlarged perspective view of a ball and socket joint employed, the ball being separated from the socket.

Referring more particularly to the drawings, the frame 1- referably dis osed under the front seat 0 the automobi e, is provided with the rock shafts 2 and 3. The rock shaft 2 is supported in the bearings 4'4, as shaft 3, and has fixedly mounted upon one end an arm 5. The free end of the arm 5 is attached at 6 to a connecting rod 7. The opposite end of the rod 7 is bifurcated at 8 and 'oined to the end of the bell cranklever 9 fu crumed upon the rod 10 rig idly held in the standards 11- 11," that may] be suspended from the frame :The end of the rock shaft 2'opp'osit'e that in which the arm 5 is attached hasmounted to turn therewith an arm'15, connected by a ball and socket joint 12, as 'shewninFi 10,

to a rod 16 whose other endis" siml ny united to the lever,17 fulcrumedatm upon a; fixed pivot mounted in the'frame 19 of the automobile, which frame is for the reception of the"lever 17.

The free end of' as lever as adjacent and is adapted to'make contact witli the end 20 of the lever 21. pivoted at 22jto a bracket.

23 mounted in'asuitable' am -a within the frame of the door of the antomobile. The opposite end of the lever 21 ispivoted to a connecting link 24 that is in turn ivoted to the end of a bell crank lever 25 ulcrumed at 26 to a bar 27 secured by its ends 28 withy in the door frame of the automobile.

The other end of the bel11crank 1ever 25 is attached to an arm 29 by a connecting rod 30, ball and socket joints 12 being employed. The arm 29 is mounted toturn with the shaft 31 having a loose bearing in the disk 32 attached to the bracket 33'fiired to the bar 27. The upper end of the shaft 31 has a loose bearing in the lock 34 and is provided with a laterally projecting nub 35 whose free end fits within an elongated recess 36 formed in the latch 37 confined to a given sliding position within the lock 34 by the guide members 38-38. A spring 39 at tached to a block 40 normally presses a ainst the inner end of the latch 37 where 1y to press said latchoutward to engage the usual socket, not heie shown, in the door frfime, to lock the door.

A coiled spring 45 is attached to the free end of the arm 15 and to the rock shaft 46 by a ring 125, whereby to hold the arm 15 normally in the position illustrated in Fig. l, after-the operator has withdrawn his foot; from the pedal L? which is pivotally attached at 98 to the bell ci ii'nli' lei er 9, so as to restore sgtid pedal 47 and immediate parts to no'ririal position.

The ed 4 7 m cl likewise t'h bedal' 50 will be' l 'iel in up'ihght positiohby suitable geizes ses formed in the floor of the eut'on'io- Iiiasi'n'fich, as' tli men a; of the ofn'po'site' door? Y's quated iii a s r'nilar manner to thgtg t e' ,doo 6Q, 'ust escrib ed through the 1 50, k leYer 5% rod 53, a'rfh stfikfily inoiinted to rotate wi t e rook shhf t sr1nj5 56: in st lever 11 with levers t d arin,

I i H l as," l 3 end heiieto ore descr e w trre'fl encetd the d I 60 his not. iie gsis arf' ehlsf' ff'igtherupoii.

copneetihg 't ."Iatirmf55 t 11 11121 1 den f,

g 6 ee ho e e end n m dmte parts in normalposl on. UN It" I; M 1 F ie f ed t ms' e. m. M ss ges, 1 g, x W0 mi es e1 Hl -EP e ti l 1 N ed to hell crank lever 73 fulbru'med L p rL a i l r74 bys'rod 75,

1'2 to the 1-12) when 18' pivoted 01111;

7 slir'iiliiig 1 0 when d o he frame l fen crtir'ilt lever 73 is joined 1 31155 b'ell erenli leir' the jofihts 12 being employed. The other end of the lever? 74 is connected by a joint 1. i' 811a (stile Rim 7] by 191111 12. he

v lonir end of the ai'ir'i 77 as orfneii integral tli ewith, a sleei'e 78 theta isurioilhted u oh 11 Ste 19 having beai'iiig's 111; the deem in'g medias soso atta'cht'd to the posts 104 of the frame 1-.

The shaft T9 is enlarged at 81 and provided With the rectan hhrr shaped recesses 82 -82 zulaptc(l for tiiv disposition of the pliiiig ier's S3- S3. The upper ends of the plnngers 83 are enlarged and rectangular itl s. is support'd a fti3. The upper hinge a 6 tofornt 8 the stud' 1 cross section, whereby to Enevent said plungrs l'lom turning \i'i'thih the recesses 82. One edge of the rectangular portion of the heads, is beveled off, in each instance, whereby to ride under the plunger 8-l when in itslower position and the shaft 79 is turned in a given direction The plunger-s 83 are held in normal eleveted position by the springs 85 and pins 86 fhaili liihit the fin/85rd movement of the plnngers 83. 4

tllilttli 5 wafers miease a: th'inec 1111i am "11696 is seamen. The arm 71 11' tipb it's there n; the" shaft 79, wneeety to fi'ct' i r'es'ultaht actuation of the levers 74,"?3; a'a'r'ir'i '{1 stilt! tl 'i r'tibriht pal-ts t6 enema-1160i 60' By th'e totatibn a the sliflft 79. The shaft 79' is rotated by an arm 110 mounted t6 tilt-i1 nt'thw'itfi. The see 6218 {if the am 110 is atttehed bjv 1 bid! we sceket joint 12' w a rod 111, joined to the lie timing arjfi 112 int 5 1 111 the'sl'eve 11 ifiodflte'd to turn wit the c'lttte'lt shaft 114 which is rocked by the clutch pedal 115.4 The peas-,1 115 has 11h lb'ow 11's Mlicil forms also an integral ait o f thia' Mavens; wneeeby it downn'afd ush ti -11H t e cltttcH {1661111 115 will rock we arm 112 and effect a similsit riiotement of the Mm 110 tht'ou'gh the rod 111.

A coiled spring 103 co nects one end of the bell ciank leirer 74 witi the frame -1 adg'ac'e'ht the post 101, in order to 110111 the he 1 (tank levers T l and 73, a'nd arm 71 in such position to normally force the door 00 into open position immediately the latch 37 is withdrawn from its locking recess, not shown.

The mechanism just described for closing the door is duplicated with respect to the door 51, there being an arm 77, a plunger 8-.1 adapted to contact with a plunger 83, a cam 95, a rod 100 connecting the cam with a lever 74, a rod 76 connectin the arm 77 with the lever 74:, a bell crank ever 73 connected to the lever 74 by a rod 75, an arm 71 connected to the lever 73 by a rod 72, a rock shaft 46 and hinges 62 and 63. A spring 115 performs the same function with respect to this last named set of levers, as the spring 103 of the former set, namely to urge the door 51 into open position.

The operation of the device for opening the doors is effected by pressing with the foot upon one of the pedals 47 or 50 in accordance with the door to be opened. The depression of either pedal, as 47 causes a rocking of the bell crank lever 9 and a consequent movement of the rod 7, arm 5, rock shaft 2, arm 15, rod 16 and lever 17. The lever 17 will effect a movement of the mechanism located within the door frame, as illustrated more particularly in Fig. 3, by pressing downward upon the end 20 of the lever 21 to thereby actuate the link 24, bell crank lever 25, rod 30 and arm 29 with a resultant rotation of the shaft 31. This rotation of the shaft 31 will pull, through the nub 35, the latch 37 within the lock 34, against the tension of the spring 39 and away from the recess in the adjacent frame of the automobile, not shown.

The latch 37, being withdrawn, the spring 103 will exert a tension indirectly through the lever 73, red 72 and arm 71 to force the door 60 into open position.

Immediately the foot is withdrawn from the pedal 47, the coil spring 45 will effect a return movement thereof, intermediately through the arm 15, shaft 2, arm 5, rod 7, and bell crank lever 9. Likewise, the lever 17 will be restored to normal position through the movement of the arm 15 and the rod 16, whereby to release the pressure on the end 20 of the lever 21 and thereby permit the projection of the latch 37 to return to normal position under the influence of the spring 39.

When the doors 51 and 60 are in open position, the cams 95 are automatically turned upon their fulcrums 96, whereby to depress the plungers 84 to lie opposite the plungers 83, by means of the connection of said earns 95 with the outer ends of the bell crank levers 74, through the rods 100.

If either door 51 or 60 is opened the turnas a fulcrum andthereby effect a. resultant movement of the levers 74, '73, arm 71, through their connections, and the rock shaft 16 to close the door.

As the door reaches closed position, the cam 95 will be revolved to the position illustrated in Fig. 5, so as to permit the plunger 81 to rise under the influence of the spring 93 and away from contact with the plunger 83, to effect a release of strain upon the levers and arm for closing the door.

In the event that either plunger 83 passes its corresponding plunger 84 and thereby renders the same ineffective for actuatin the arm 77 to close the doors 51 or 60, the beveled surface of the head of the plunger 83 will permit the same to pass to the correct side of the plunger 84.

It will be noted that the arms of the bell crank levers 73 vary in length with respect to the arms of the bell crank levers 74. This variance is arranged progressively, whereby a small movement of the pedal 115 will transmit a greater movement of the arm 71 to close the door.

The shafts 2 and 3, are prevented from moving longitudinally with respect to their bearings 4 by the collars 120 held in place by set screws. Likewise, the sleeves 78 of the arms 77 are held in given position upon the shaft 79 by the collars 120.

Handles 121 are provided to work the latches 37 manually, if so desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a door operating mechanism, a door, means for opening said door, a. door closing shaft, means for rotating said shaft, an arm loosely mounted on said shaft, means connecting said arm to the door, means on said arm for connecting it to the shaft, and. means operated by the door connection when the door is nearing opened position to actuate the last named means to connect the arm to the shaft, whereby to close the door.

2. In a door operating mechanism, a door, means for opening said door, a door closing shaft, means for rotating said shaft, an arm loosely mounted on said shaft, means connecting said arm to the door, a plunger on said arm, and means operated by the door connection when the door is nearing opened position to actuate the plunger to connect the arm to the shaft, whereby to close the door.

3. In a door operating mechanism, a door, means for opening the door, a door closing shaft, means for rotating it, an arm loosely mounted on said shaft, means connecting said arm to the door, a plunger on said arm, means operated by the door connection when the door is nearing opened position to operate the plunger to connect the arm to the shaft and means for disconnecting the plnnger' from: cli'e shaft: when the door is' closed.

4; In a door'operatlmg mechamsm, a door, means for opening Uhe door, a: door closing shaft, means fox refia ting it, an arm loosely mounted* on said shaft, means connecting sa'ida fim' mthe door, a plunger on seid arm, a cam operieted by the d001- eonnection when mama the door is nearingepened position to 09 crate the piungen 130' connect the to the 1) nRTHUR n. BOXALL.

(topics 06 this patent may be obtained to! five cent each, by addressing the Gummiasioner of Patents, washingtonrD. 0. 

